产生6位的随机码

import random
li=[]
for i in range(6):
    r=random.randrange(0,6)
    if r==3 or r==5:
        num=random.randrange(1,10)
        li.append(str(num))
    else:
        temp = random.randrange(65, 91)
        c = chr(temp)
        li.append(c)
result = "".join(li)
print(result)